StatWatcher re-factoring that passes wrapped ev_statinfo information of previous and current path state to on_change event
fix 'Init_cool could not be found' issue.
…he default seems to be leaking into the TimerWatcher test
current state. Passes the wrapped ev_statdata to the event call so that the client can do something with that info.
Rely on rake-compiler instead of handmade tasks to improve portability and standardization. This will allow in the future rely on the cross-compilation functionality of rake-compiler to generate native gems for other platforms (e.g. Windows)